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Wiring diagrams, Labeling for slc/plc systems – Rockwell Automation 1746-XXXX SLC 500 Digital I/O Modules Installation Instructions User Manual

Page 17

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SLC 500 Digital I/O Modules 17

Publication 1746-IN027D-EN-P - December 2012

Wiring Diagrams

The wiring diagrams in these installation instructions are examples only. It is not necessary to
connect an I/O device to each and every I/O module terminal.

Labeling for SLC/PLC Systems

In this document, 16-point I/O module wiring diagrams include both decimal and octal
numbers for I/O addressing and wire identification (see figure below). To wire your 16-point
I/O module when used in a SLC system, use the decimal numbers in the upper left portion of
each box. When used in a PLC system, use the octal numbers in the lower right portion of the
box.

As shipped from the factory, the I/O module has a decimal address label on the inside of its
door
. A separate octal conversion kit can be ordered, to allow you to convert your module to the
octal system.

Decimal and Octal Labeling for 16-point I/O Modules

TIP

You can order the octal label kit from your Allen-Bradley Distributor. The octal kit
is ordered based on the catalog number of the I/O module.

Please refer to the SLC 500 Modular Hardware Style User Manual, publication

1747-UM011

, for a listing of octal label kit catalog numbers.

IMPORTANT

Be sure the octal labels are used with your PLC system. Directions on how to
install the labels are included with the kit and on page 6 of this document.

IN 14

16

IN 1

IN 0

IN 2

IN 3

IN 4

IN 5

IN 6

IN 7

IN 9

IN 10

IN 11

IN 12

IN 13

IN 14

IN 15

AC COM

AC COM

0

1

2

4

6

IN 8

10

12

14

16

11

13

15

17

3

5

7

L1

L2

PLC

SLC

100/120V AC

1746-IA16

100/120V AC

Internally Connected
Commons

For PLC (octal)

For SLC (decimal)